set scheme s2color

* Figure 1(a)

local nocolumns 8
local nocolumns_m1 = `nocolumns'-1
clear
local new = _N + 1
set obs `new'
gen year = 0
expand `nocolumns_m1'
gen variable = _n+1
tempfile temp0
save `temp0.dta', replace

insheet using "D:\Data\Workdata\703989\FJSJ3989\CIK\replication_restat\output\table_A10.txt", tab clear
drop if _n<=3
drop if _n>16
forval i = 2/`nocolumns'{
	replace v`i' = subinstr(v`i',"*","",.)
	replace v`i' = subinstr(v`i',"(","",.)
	replace v`i' = subinstr(v`i',")","",.)
}
destring v2-v`nocolumns', replace
gen coefficient = (v1!="")
carryforward v1, replace
tempfile temp1
save `temp1.dta', replace

keep if coefficient==1
rename v1 time
reshape long v, i(time) j(variable)
drop coefficient
rename v coefficient
tempfile temp2
save `temp2.dta', replace

use `temp1.dta', clear
keep if coefficient==0
rename v1 time
reshape long v, i(time) j(variable)
drop coefficient
rename v stderr
merge 1:1 time variable using `temp2.dta', nogen
gen lb = coefficient - 1.96*stderr
gen ub = coefficient + 1.96*stderr

gen year = .
forval i = 1/4{
	replace year = -`i' if time =="m`i'"
	replace year = `i' if time =="p`i'"
}
append using `temp0.dta'
replace coefficient = 0 if year==0
replace lb = 0 if year==0
replace ub = 0 if year==0

drop if year==-4 | year==4

sort variable year
graph twoway (scatter coefficient year if variable==2, msymbol(circle) mcolor(black)) (line coefficient year if variable==2, lcolor(black) lwidth(medthick)) (rcap ub lb year if variable==2, lcolor(black) lwidth(medthick)) , graphregion(color(white)) xline(0,lwidth(3) lcolor(gs14) lstyle(solid)) ytitle("Coefficient estimate" "", size(large)) xtitle("Year relative to merger", size(large)) ylabel(-0.1(0.05)0.15 , labsize(large) gmax gmin)  xlabel(-3 "-3" -2 "-2" -1 "-1" 0 "0" 1 "+1" 2 "+2" 3 "+3", labsize(large)) legend(order(1 "Prod{superscript:D}") size(large) pos(6) row(1) region(lcolor(black))) title("Baseline" " ", size(vlarge) color(black))
graph export "D:\Data\Workdata\703989\FJSJ3989\CIK\replication_restat\output\figure_1a.pdf", replace mag(100)

********************************************************************************

* Figure 1(b)

sort variable year
graph twoway (scatter coefficient year if variable==3, msymbol(circle) mcolor(black)) (line coefficient year if variable==3, lcolor(black) lwidth(medthick)) (rcap ub lb year if variable==3, lcolor(black) lwidth(medthick)) , graphregion(color(white)) xline(0,lwidth(3) lcolor(gs14) lstyle(solid)) ytitle("Coefficient estimate" "", size(large)) xtitle("Year relative to merger", size(large)) ylabel(-0.6(0.2)0.2 , labsize(large) gmax gmin)  xlabel(-3 "-3" -2 "-2" -1 "-1" 0 "0" 1 "+1" 2 "+2" 3 "+3", labsize(large)) legend(order(1 "Prod{superscript:D,AT}") size(large) pos(6) row(1) region(lcolor(black))) title("Baseline" " ", size(vlarge) color(black))
graph export "D:\Data\Workdata\703989\FJSJ3989\CIK\replication_restat\output\figure_1b.pdf", replace mag(100)


********************************************************************************

* Figure 1(c)

local nocolumns 7
local nocolumns_m1 = `nocolumns'-1
clear
local new = _N + 1
set obs `new'
gen year = 0
expand `nocolumns_m1'
gen variable = _n+1
tempfile temp0
save `temp0.dta', replace

insheet using "D:\Data\Workdata\703989\FJSJ3989\CIK\replication_restat\output\table_A11.txt", tab clear
drop if _n<=19
drop if _n>16
forval i = 2/`nocolumns'{
	replace v`i' = subinstr(v`i',"*","",.)
	replace v`i' = subinstr(v`i',"(","",.)
	replace v`i' = subinstr(v`i',")","",.)
}
destring v2-v`nocolumns', replace
gen coefficient = (v1!="")
carryforward v1, replace
tempfile temp1
save `temp1.dta', replace

keep if coefficient==1
rename v1 time
reshape long v, i(time) j(variable)
drop coefficient
rename v coefficient
tempfile temp2
save `temp2.dta', replace

use `temp1.dta', clear
keep if coefficient==0
rename v1 time
reshape long v, i(time) j(variable)
drop coefficient
rename v stderr
merge 1:1 time variable using `temp2.dta', nogen
gen lb = coefficient - 1.96*stderr
gen ub = coefficient + 1.96*stderr

gen year = .
forval i = 1/4{
	replace year = -`i' if time =="M`i'Xa"
	replace year = `i' if time =="P`i'Xa"
}
append using `temp0.dta'
replace coefficient = 0 if year==0
replace lb = 0 if year==0
replace ub = 0 if year==0

drop if year==-4 | year==4

sort variable year
graph twoway (scatter coefficient year if variable==2, msymbol(circle) mcolor(black)) (line coefficient year if variable==2, lcolor(black) lwidth(medthick)) (rcap ub lb year if variable==2, lcolor(black) lwidth(medthick)) , graphregion(color(white)) xline(0,lwidth(3) lcolor(gs14) lstyle(solid)) ytitle("Coefficient estimate" "", size(large)) xtitle("Year relative to merger", size(large)) ylabel(-0.1(0.1)0.3 , labsize(large) gmax gmin)  xlabel(-3 "-3" -2 "-2" -1 "-1" 0 "0" 1 "+1" 2 "+2" 3 "+3", labsize(large)) legend(order(1 "Prod{superscript:D}") size(large) pos(6) row(1) region(lcolor(black))) title("Synthetic merger control group" " ", size(vlarge) color(black))
graph export "D:\Data\Workdata\703989\FJSJ3989\CIK\replication_restat\output\figure_1c.pdf", replace mag(100)

********************************************************************************

* Figure 1(d)

sort variable year
graph twoway (scatter coefficient year if variable==3, msymbol(circle) mcolor(black)) (line coefficient year if variable==3, lcolor(black) lwidth(medthick)) (rcap ub lb year if variable==3, lcolor(black) lwidth(medthick)) , graphregion(color(white)) xline(0,lwidth(3) lcolor(gs14) lstyle(solid)) ytitle("Coefficient estimate" "", size(large)) xtitle("Year relative to merger", size(large)) ylabel(-0.6(0.2)0.2 , labsize(large) gmax gmin)  xlabel(-3 "-3" -2 "-2" -1 "-1" 0 "0" 1 "+1" 2 "+2" 3 "+3", labsize(large)) legend(order(1 "Prod{superscript:D,AT}") size(large) pos(6) row(1) region(lcolor(black))) title("Synthetic merger control group" " ", size(vlarge) color(black))
graph export "D:\Data\Workdata\703989\FJSJ3989\CIK\replication_restat\output\figure_1d.pdf", replace mag(100)
